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Oracle Linux: (CVE-2018-1120) ELSA-2018-3083: kernel security, bug fix, and enhancement update

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Oracle Linux: (CVE-2018-1120) ELSA-2018-3083: kernel security, bug fix, and enhancement update

Severity
4
CVSS
(AV:N/AC:M/Au:S/C:N/I:N/A:P)
Published
06/08/2018
Created
05/08/2019
Added
11/06/2018
Modified
03/02/2020

Description

A flaw was found affecting the Linux kernel before version 4.17. By mmap()ing a FUSE-backed file onto a process's memory containing command line arguments (or environment strings), an attacker can cause utilities from psutils or procps (such as ps, w) or any other program which makes a read() call to the /proc/<pid>/cmdline (or /proc/<pid>/environ) files to block indefinitely (denial of service) or for some controlled time (as a synchronization primitive for other attacks).

Solution(s)

  • oracle-linux-upgrade-kernel

References

  • ELSA-2018-3083
  • USN-3752-1
  • USN-3752-2
  • USN-3752-3
  • USN-3910-1
  • USN-3910-2
  • CVE-2018-1120
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